Dynamic Formulation for Cable Stayed Bridge and It’s Validation

Abstract

Cable stayed bridge is the most sensitive structure because of its higher flexibility. Exact bridge behavior can be obtained by proper dynamic bridge formulation. Cable stayed bridge deck and pylon can be modelled as abeam element. Researchers used to model cables with simple truss element and letter by parabolic cable element; although they are not presenting the exact cable performance under different lateral loads. In this study, a complete comprehensive study of modelling scheme for cable stayed bridge with improved catenary cable element is adopted by Equivalent modulus approach. The Modelling strategy involved finite element modelling with a dynamic stiffness method. A real CS Bridge is modelled in Midas-civil and results are compared. This improved innovative modelling approach agrees well with the bridge analysis results of the research article.